friedrich



3 Sheets Sheet 1.

(No Model.)

C. R. FRIEDRICH.

SLAT BLIND.

Patented Oct. 19,1897.

al' g (No Model.) 3 Sheets-Sheet 2.

C. R. FRIEDRICH. SLAT BLIND.

1 No. 591,918. Patentedot. 19,1897.

1 nofws Evans co. Fumo-nwo. wAsmnnTcw o c (No Model.) 3 Sheets-Sheet 3.

C. R. FRIEDRICH.

' SLAT BLIND., No. 591,918. Patented Oct. 19,1897.

UNITED STATES PATENT CEEICE.

CARL ROBERT FRIEDRICH, OF WERDAU, GERMANY.

sLAT BLIND.

SPECIFICATION forming part of Letters Patent No. 591,918, dated October19, 1897. Application filed February I8, 1897.l Serial No, 623,995. (Nomodel.)

To all whom, if may concern:

Be it known that I, CARL ROBERT' FRIED- RICH, a subject of the King ofSaxony, residing at lVerdau, in the Kingdom of Saxony, German Empire,have invented a certain new and useful Improvement in Slat Blinds, ofwhich the following is a full, clear, and exact description.

The present invention consists of a slat blind composed of a series ofvertical strips, each having horizontally-arranged slats, and all beingadjustable in vertical planes and capable of being rolled up after themanner of an ordinary roller-blind. In addition to this the blind isprovided with a device by means of which the lower end of the same maybe propped outwardly and thus the device made to serve as a marquee; andin order to render the present specification more easily intelligiblereference is had to the accompanying drawings, in which similar lettersof reference denote similar parts throughout the several views.

Figure l is a front elevation of the blind; Fig. 2, a similar elevationwith the vertical strips differently adj Listed; Fig. 3, a perspectiveview with the blind partly rolled up and its lower ends adjustedoutwardlylike a marquee; Fig. 4, a part front elevation drawn to allarger scale; Fig. 5, an end elevation of Fig.

4; Fig. 6, a plan view of the cord, weight, and roll for adjusting thestrips; Fig. 7, aplan of Fig. l; Fig. S, a front elevation of a modifiedform of blind; Fig. 9, avertical cross-section through Fig. 8; and Fig.lO, a horizontal section through the window, showing the blind in plainview.

Referring to Figs. l to 7, the blind is composed of a series of verticalstrips a, each formed of slats in the ordinary manner and pivoted at thecenter of its top and bottom bars to a top and bottom bar or roll b andc. The top roll b is pivotally mounted in the window-framing in anysuitable manner and provided at the right-hand end with a roll d, havinga cord f by means of which the roller b may be turned and the strips awound thereon. At the opposite end the rollb is provided with a drum,having mounted thereon two guide-pulleys h and t' for a cord. In thecord-roll cl a pulley g is also mounted, said three pulleys h, c', and gbeing arranged to rotate in a horizontal plane when the blind has beenlet right down. At each side of the blind are suitablyarranged in thewindowframing guide-rods a n, serving to guide the lower bar c of theblind. On the lefthand rod n a weight Z, having roll fm. Vmountedtherein, is arranged to slide loosely up and down said rod and may befixed in any desired position thereon by means of a screw 0. A cord kpasses around said roll m, and leading upward its two lines are guidedover the rolls h and c', and then round the roll g, thus forming anendless cord, the front or rear horizontal line of which is attached toone corner of each of the vertical strips, as will be clearly seen fromFig. 2. vBy pulling one side of this vcord 7o the strips d may beadjusted in to any desired' position-thus, for instance, from theposition shown at Fig. l to that shown at'Fig. 2. If then the cord istightened and the weight Z clamped on the rod n by means of the screw0,'the strips will remain in the position to which they have been adjusted. The strips d being composed of slats may easily be wound on theroll b by means of the cord f after having been adjusted to lie in oneplane. As will be seen from Fig. 3, side rods p p are swiveled to thelower bar c, which may be turned onto the bar and secured there in anysuitable manner, or theyvmay also be turned around at right angles tosaid bar and be hooked into suitable eyes fixed in the window-frame andthus support the lower end of the blind outwardly after the manner of amarquee.

As shown at Figs. 8 to 10, the blind may also be arranged as an ordinarySlat-blind, being provided with. upper and lower bars q q and having theside strips d' somewhat narrower and connected to the cross-bars q q soas to form a frame. This frame with the vertical strips d a can beeasily drawn up and let down in any desired manner. The adjustment ofthe strips takes place in the same manner as heretofore described.

I claim as my inventionl. The combination of an upper and a lower barthe upper bar havin ga guide-pulley at one end and a drum at the otherend provided with a pair of guide-pulleys; a series of vertical stripseach consisting of a plurality of slats, said strips being pivoted attheir opposite ends, respectively, to said bars; a niovablymounted roll;an endless cord passed around the said roll and the severalguide-pulleys, respectively, and attached to the vertical strips,whereby on the manipulation of the cord the strips can be adjusted; andmeans for rolling said series of strips up and down on the upper bar.

2. The combination of a series of vertical strips formed of slats, andan upper and a lower bar, a drum on said upper bar having mountedtherein two guide-pulleys and aA cord-roll at the opposite end havingmounted therein one pulley, means for pivoting said strips centrally tosaid upper and lower bar, a cord, attached to one upper corner of eachof said strips, laterally-arranged guide-rods on the window-frame and aweighted roll on one of said rods around which said cord passessubstantially as described.

3. The combination of an upper and lower bar, a series of stripscomposed of slats, and centrally pivoted to said upper and lower bar,guide-rolls on said upper bar as specified and laterally-mountedguide-rods n n, a weighted guide-roll m to slide on one of said rods n,a cord without end to pass over said guide-rolls and having one of itslines fixed to corresponding corners of all the strips, means forrotating the top roller, and arms swiveled to the lower roller and meansfor detachably securing their free ends to the window-framesubstantially as described.

4. The combination, with longitudinal guide-rods, of upper and lowerbars the upper bar having a guide-pulley at one end and a drum at theother end provided with guidepulleys; a series of vertical stripsconsisting of slats, and pivoted, respectively, at their opposite endsto said bars; a movably-mount-h ed roll, the device for supporting thesame being in sliding engagement with one of said guide-rods; an endlesscord passed around the several guide-pulleys and roll; and means forrolling the series of strips'up and down on the upper bar.

5. The combination, with longitudinal guide-rods, of upper and lowerbars the upper bar being furnished with a guide-pulley,

CARL ROBERT FRIEDRlCH.

Witnesses:

RICHARD NURNBERGER, MORITZ SPREER.

